1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; addr-01.ll in which the address is also used in a non-address context.
; The assumption here is that we should match complex addresses where
; possible, but this might well need to change in future.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
; A simple index address.
define void @f1(i64 %addr, i64 %index, ptr %dst) {
; CHECK-LABEL: f1:
; CHECK: # %bb.0:
; CHECK-NEXT: lb %r0, 0(%r3,%r2)
; CHECK-NEXT: la %r0, 0(%r3,%r2)
; CHECK-NEXT: stg %r0, 0(%r4)
; CHECK-NEXT: br %r14
%add = add i64 %addr, %index
%ptr = inttoptr i64 %add to ptr
%a = load volatile i8, ptr %ptr
store volatile ptr %ptr, ptr %dst
ret void
}
; An address with an index and a displacement (order 1).
define void @f2(i64 %addr, i64 %index, ptr %dst) {
; CHECK-LABEL: f2:
; CHECK: # %bb.0:
; CHECK-NEXT: lb %r0, 100(%r3,%r2)
; CHECK-NEXT: la %r0, 100(%r3,%r2)
; CHECK-NEXT: stg %r0, 0(%r4)
; CHECK-NEXT: br %r14
%add1 = add i64 %addr, %index
%add2 = add i64 %add1, 100
%ptr = inttoptr i64 %add2 to ptr
%a = load volatile i8, ptr %ptr
store volatile ptr %ptr, ptr %dst
ret void
}
; An address with an index and a displacement (order 2).
define void @f3(i64 %addr, i64 %index, ptr %dst) {
; CHECK-LABEL: f3:
; CHECK: # %bb.0:
; CHECK-NEXT: lb %r0, 100(%r3,%r2)
; CHECK-NEXT: la %r0, 100(%r3,%r2)
; CHECK-NEXT: stg %r0, 0(%r4)
; CHECK-NEXT: br %r14
%add1 = add i64 %addr, 100
%add2 = add i64 %add1, %index
%ptr = inttoptr i64 %add2 to ptr
%a = load volatile i8, ptr %ptr
store volatile ptr %ptr, ptr %dst
ret void
}
; An address with an index and a subtracted displacement (order 1).
define void @f4(i64 %addr, i64 %index, ptr %dst) {
; CHECK-LABEL: f4:
; CHECK: # %bb.0:
; CHECK-NEXT: lb %r0, -100(%r3,%r2)
; CHECK-NEXT: lay %r0, -100(%r3,%r2)
; CHECK-NEXT: stg %r0, 0(%r4)
; CHECK-NEXT: br %r14
%add1 = add i64 %addr, %index
%add2 = sub i64 %add1, 100
%ptr = inttoptr i64 %add2 to ptr
%a = load volatile i8, ptr %ptr
store volatile ptr %ptr, ptr %dst
ret void
}
; An address with an index and a subtracted displacement (order 2).
define void @f5(i64 %addr, i64 %index, ptr %dst) {
; CHECK-LABEL: f5:
; CHECK: # %bb.0:
; CHECK-NEXT: lb %r0, -100(%r3,%r2)
; CHECK-NEXT: lay %r0, -100(%r3,%r2)
; CHECK-NEXT: stg %r0, 0(%r4)
; CHECK-NEXT: br %r14
%add1 = sub i64 %addr, 100
%add2 = add i64 %add1, %index
%ptr = inttoptr i64 %add2 to ptr
%a = load volatile i8, ptr %ptr
store volatile ptr %ptr, ptr %dst
ret void
}
; An address with an index and a displacement added using OR.
define void @f6(i64 %addr, i64 %index, ptr %dst) {
; CHECK-LABEL: f6:
; CHECK: # %bb.0:
; CHECK-NEXT: nill %r2, 65528
; CHECK-NEXT: lb %r0, 6(%r2,%r3)
; CHECK-NEXT: la %r0, 6(%r2,%r3)
; CHECK-NEXT: stg %r0, 0(%r4)
; CHECK-NEXT: br %r14
%aligned = and i64 %addr, -8
%or = or i64 %aligned, 6
%add = add i64 %or, %index
%ptr = inttoptr i64 %add to ptr
%a = load volatile i8, ptr %ptr
store volatile ptr %ptr, ptr %dst
ret void
}
; Like f6, but without the masking. This OR doesn't count as a displacement.
define void @f7(i64 %addr, i64 %index, ptr %dst) {
; CHECK-LABEL: f7:
; CHECK: # %bb.0:
; CHECK-NEXT: oill %r2, 6
; CHECK-NEXT: lb %r0, 0(%r3,%r2)
; CHECK-NEXT: la %r0, 0(%r3,%r2)
; CHECK-NEXT: stg %r0, 0(%r4)
; CHECK-NEXT: br %r14
%or = or i64 %addr, 6
%add = add i64 %or, %index
%ptr = inttoptr i64 %add to ptr
%a = load volatile i8, ptr %ptr
store volatile ptr %ptr, ptr %dst
ret void
}
; Like f6, but with the OR applied after the index. We don't know anything
; about the alignment of %add here.
define void @f8(i64 %addr, i64 %index, ptr %dst) {
; CHECK-LABEL: f8:
; CHECK: # %bb.0:
; CHECK-NEXT: nill %r2, 65528
; CHECK-NEXT: agr %r2, %r3
; CHECK-NEXT: oill %r2, 6
; CHECK-NEXT: lb %r0, 0(%r2)
; CHECK-NEXT: stg %r2, 0(%r4)
; CHECK-NEXT: br %r14
%aligned = and i64 %addr, -8
%add = add i64 %aligned, %index
%or = or i64 %add, 6
%ptr = inttoptr i64 %or to ptr
%a = load volatile i8, ptr %ptr
store volatile ptr %ptr, ptr %dst
ret void
}
|